Vista - Vista x64 keeps freezing 5 minutes after boot

I have had it. . . Vista keeps freezing about 5 minutes after boot up. . .

Software up to date, drivers up to date, BIOS, up to date,
memory tested, no errors, switched out 4GIGs RAM, no change, Event viewer , no errors. . .
Shut off Avast, still freezes chkdsk /r no change, ccleaner, no change, deframentation, no change. . .

it used to be after the first reboot, the machine ran fine, until yesterday, when after any and every reboot, 5 minutes, system freezes, nothing works, disk activity can not be heard.

other drive XP, no problems running, no freezeups, am using it now. . .

so what's the deal, any suggestions?

thanks

sportsguy

Hi

lets try this first

Run a system file check start, search, type cmd, type sfc /scannow . theis verifies and repairs system files

let me know the results

ken

i will try, there is no guarantee that it will finish before the freeze takes place, I will try it in safe mode, if it will work

sportsgu

First follow Ken's instructions. Hopefully that will resolve the problem. If not...

Does it freeze in safe mode? If not, go into msconfig (just type it in start search) disable start up items and non microsoft services. the reason this is a suggestion because it freezes in normal mode not safe mode and the difference in safe mode to normal is start up items, services, and non plug and play drivers (suggestion to never touch unless you have an OS CD)

windows resource did not find any integrity violations. . .

next suggestion?

so far in safe mode, no freeze up.

okay. if that keeps up, then follow directions above...

i have minimum start up items.

Windows Defender
NVidia Media Center library
Avast 64 Pro

You could have left out Windows Defender, Nvidia Media Center Library and Avast - for this test.

Everything off, as instructed, . . still lots of disk activity, can't see what its doing. . .

updates NOT installed are: Group Policy Preference client side
Windows PowerShell
Office Line addin
Windows Live Essentials

so far, so good. . although the disk is still spinning